Producer
Showa Corporation (Hitachi Astemo)
Japanese motorcycle suspension/fork maker (Honda); now part of Hitachi Astemo.
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Motorcycle suspension
Automotive suspension & steering
Marine & off-road
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Origin2026
Showa's suspension mastery came from a postwar reinvention. Founded in 1938, it was barred from developing aircraft systems after World War II, so it redeployed its aeronautical engineering into vehicle components — and developed the suspension for the fledgling Honda. The damping and precision-tube know-how that now sits under most Honda bikes and cars (and outboard motors and ATVs) is repurposed aircraft technology — a hidden lineage running from a banned wartime industry to the world's largest suspension maker, today folded into the Hitachi Astemo mega-supplier. [verify: Showa 1938 aircraft, banned post-WWII, Honda suspension confirmed]
Wikipedia ↗Concentration2021
Motorcycle and much road-vehicle suspension is a Japanese duopoly: Showa and KYB (Kayaba) have for 70+ years supplied the majority of the world's surface-transportation suspension, mirroring the keiretsu pairings (Showa↔Honda, which holds a stake; KYB↔Yamaha), with Öhlins as the premium tier (itself built under license by Soqi in Japan). Showa is the suspension equivalent of Brembo-for-brakes — the recognizable OEM 'good fork.' So the two systems that most define how a motorcycle rides and stops — suspension and brakes — each trace to a handful of Japanese specialists most riders never think about. [verify: Showa/KYB duopoly, 70+yrs, Honda/Yamaha keiretsu, Ohlins-via-Soqi all confirmed]
Hitachi Astemo Americas ↗